DeWalt DWS780 12" Sliding Compound Miter Saw Review
The DeWalt DWS780 is the miter saw that professional trim carpenters reach for most often, and for good reason. The 15-amp motor delivers smooth, powerful cuts through any trim material and most framing lumber. The XPS shadow-line cut indicator projects an LED shadow of the blade onto your workpiece — more accurate than laser guides and requires zero calibration. The dual-bevel sliding design handles wide crown moulding and baseboards without flipping material. At $649 it's priced between budget and premium saws, delivering professional-grade performance without the Festool Kapex price tag.
Score Breakdown
The XPS Advantage
Most miter saws use laser guides that need regular calibration and can drift. DeWalt's XPS system projects a shadow of the actual blade onto the workpiece using LED lights. The shadow shows exactly where the blade will cut — no calibration, no drift, no batteries. It's the most accurate cut indicator available on any miter saw under $1,000.
Cut Capacity
The 12" blade on sliding rails provides massive cut capacity: up to 6-3/4" vertical capacity at 90° and 13-7/8" horizontal crosscut capacity. This handles virtually any trim material, crown moulding, and even 4×6 framing lumber. The dual-bevel design means you can make bevel cuts in both directions without flipping your workpiece — a significant time saver for trim work.
Alternatives
The Bosch GCM12SD ($549) offers the space-saving Axial Glide system that eliminates rear rail clearance. For budget builds, the DeWalt DWS715 ($249) is a solid fixed-base option.
| Spec | Details |
|---|---|
| Motor | 15 amp |
| Blade | 12" carbide-tipped |
| Type | Dual-bevel sliding compound |
| Cut Indicator | XPS LED shadow-line |
| Crosscut Capacity | 13-7/8" at 90° |
| Vertical Capacity | 6-3/4" at 90° |
| Bevel Range | 0-49° left and right |
| Miter Range | 0-60° left, 0-51° right |
| Detent Stops | 14 positive stops |
| Weight | 56 lbs |
| Warranty | 3-year limited |
Check Current Price — DeWalt DWS780
$649 from DeWalt dealers
View Product →Tom is a master carpenter with 20 years of professional experience and a workshop full of tools he's bought, broken, and replaced. He evaluates every tool from the perspective of daily professional use, not weekend hobby projects.